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- /* Copyright (c) 2016, Google Inc.
- *
- * Permission to use, copy, modify, and/or distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
- * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
- * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
- * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
-
- #include <stdio.h>
-
- #include <openssl/asn1.h>
- #include <openssl/crypto.h>
- #include <openssl/err.h>
-
- #include "../test/scoped_types.h"
-
-
- // kTag128 is an ASN.1 structure with a universal tag with number 128.
- static const uint8_t kTag128[] = {
- 0x1f, 0x81, 0x00, 0x01, 0x00,
- };
-
- // kTag258 is an ASN.1 structure with a universal tag with number 258.
- static const uint8_t kTag258[] = {
- 0x1f, 0x82, 0x02, 0x01, 0x00,
- };
-
- static_assert(V_ASN1_NEG_INTEGER == 258,
- "V_ASN1_NEG_INTEGER changed. Update kTag258 to collide with it.");
-
- // kTagOverflow is an ASN.1 structure with a universal tag with number 2^35-1,
- // which will not fit in an int.
- static const uint8_t kTagOverflow[] = {
- 0x1f, 0xff, 0xff, 0xff, 0xff, 0x7f, 0x01, 0x00,
- };
-
- static bool TestLargeTags() {
- const uint8_t *p = kTag258;
- ScopedASN1_TYPE obj(d2i_ASN1_TYPE(NULL, &p, sizeof(kTag258)));
- if (obj) {
- fprintf(stderr, "Parsed value with illegal tag (type = %d).\n", obj->type);
- return false;
- }
- ERR_clear_error();
-
- p = kTagOverflow;
- obj.reset(d2i_ASN1_TYPE(NULL, &p, sizeof(kTagOverflow)));
- if (obj) {
- fprintf(stderr, "Parsed value with tag overflow (type = %d).\n", obj->type);
- return false;
- }
- ERR_clear_error();
-
- p = kTag128;
- obj.reset(d2i_ASN1_TYPE(NULL, &p, sizeof(kTag128)));
- if (!obj || obj->type != 128 || obj->value.asn1_string->length != 1 ||
- obj->value.asn1_string->data[0] != 0) {
- fprintf(stderr, "Failed to parse value with tag 128.\n");
- ERR_print_errors_fp(stderr);
- return false;
- }
-
- return true;
- }
-
- int main() {
- CRYPTO_library_init();
-
- if (!TestLargeTags()) {
- return 1;
- }
-
- printf("PASS\n");
- return 0;
- }
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